textproduct: Quad Cities

KEY MESSAGES

- Unseasonably mild fall weather continues through the end of the week with passing clouds and relatively light winds.

- Precipitation chances increase midweek and into the weekend, as a more active pattern takes shape over the region.

SHORT TERM /THROUGH TUESDAY NIGHT/

Issued at 203 PM CDT Mon Oct 26 2026

Upper wave continues to track northeast into the Upper Mississippi River Valley tonight through Tuesday, shunting the upper ridge off to our east. As a result, we will start to see upper level southwesterly flow increase over the region through this timeframe. The cold front that has been draped over the area will remain through tonight, lifting north through the day Tuesday as a wave ejects off the southern Rockies and tracks northeast into the region. Overall, moisture remains quite limited through this timeframe, resulting in a dry forecast. Although, we will continue to see a mix of clouds/sun as a result of this increase in moisture. Otherwise, winds will remain light and variable with this front draped overhead, becoming more southeasterly as it lifts north Tuesday. LLVL southwesterly flow increases overhead through the day on Tuesday, setting the stage for temperatures a few degrees warmer than today. Thus, we can generally expect temperatures around 70.

LONG TERM /WEDNESDAY THROUGH SUNDAY/

Issued at 203 PM CDT Mon Oct 26 2026

Wednesday Through Thursday...

Broad upper level southwest to zonal flow will set up through Thursday, with a shortwave trof tracking along the northern CONUS. Similar to the front over the area today, we will see another weak and slow-moving cold front approach the area Wednesday night through Thursday. The main difference with this front is that we will see better llvl southwesterly flow ahead of this boundary, increasing moisture availability. Thus, we will see increasing chances for showers along the front, largely overnight Wednesday. Best chances will be along/north of a line from Sigourney to Dubuque IA (40-70%) with lesser chances for the remainder of the area (20-40%). Overall accumulation will be low and generally <0.10-0.25" for all, with an isolated thunderstorm possible as well. This activity will diminish Thursday AM, with decreasing cloud cover through the afternoon hours. Otherwise, daytime temperatures will be in the low-mid 70s through this stretch, with nights in the mid-upper 50s.

Friday and Beyond...

The end of the week appears to be a similar set-up to the beginning of the week, with the region sandwiched between a low pressure over the Central Plains and a high pressure over the Great Lakes. This will support southeasterly flow across the CWA with a weak warm front along the confluence zone. Continued advection of Pacific moisture keeps PoPs (30-50% coverage) around Friday through Saturday night. On Sunday, a longwave trough over the western CONUS is likely to eject eastward into the Northern Rockies, paving the way for a more active pattern heading into the first week of November.

AVIATION /18Z TAFS THROUGH 18Z TUESDAY/

Issued at 1218 PM CDT Mon Oct 26 2026

VFR conditions will prevail through the TAF period. A weak cold front is draped over the area, resulting in some variable winds. South of the front, we are generally seeing light and variable winds, with those north of the front seeing easterly winds around 10 KTs. Winds will become more southeasterly as we go through the TAF period, with a mix of mid-high clouds. Otherwise, no sig wx is expected at this time.

DVN WATCHES/WARNINGS/ADVISORIES

IA...None. IL...None. MO...None.